It generally goes like this (with some exceptions of course)
Men are attracted to reproductive capability assumed in physical appearance
Women are attracted to dominance, more socially but could be in any way seen as dominant
I'm more interested in a slave than a lover. I want someone who I can lock away when I don't want them around me. I want a male who is physically strong and good looking, who I can put on a leash and walk like a dog. Hell, I'd even feed him like a dog.
I want someone I can fuck with mentally and physically at my own leisure. Someone who is willing to submit on command and push their own limits. Someone who is willing to explore the dark side of the human mind with me.